CVE-2026-32913
Received Received - Intake

Improper Header Validation in OpenClaw Enables Sensitive Data Exposure

Publication date: 2026-03-23

Last updated on: 2026-03-24

Assigner: VulnCheck

Description
OpenClaw before 2026.3.7 contains an improper header validation vulnerability in fetchWithSsrFGuard that forwards custom authorization headers across cross-origin redirects. Attackers can trigger redirects to different origins to intercept sensitive headers like X-Api-Key and Private-Token intended for the original destination.

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Meta Information

Published
2026-03-23
Last Modified
2026-03-24
Generated
2026-07-06
AI Q&A
2026-03-24
EPSS Evaluated
2026-07-05
NVD
CVE-2026-32913

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
openclaw openclaw to 2026.3.7 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-522 The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

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Executive Summary

This vulnerability exists in OpenClaw versions before 2026.3.7 and involves improper header validation in the function fetchWithSsrFGuard. Specifically, it forwards custom authorization headers during cross-origin redirects without proper checks.

Attackers can exploit this by triggering redirects to different origins, which allows them to intercept sensitive headers such as X-Api-Key and Private-Token that were intended only for the original destination.

Impact Analysis

The vulnerability can lead to unauthorized disclosure of sensitive authorization headers, including API keys and private tokens.

This exposure can allow attackers to gain unauthorized access to protected resources or services by using intercepted credentials.

Compliance Impact

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